Suspended reverse wall working well supporting structure and construction method

Abstract

The invention discloses a suspended reverse wall working well supporting structure and a construction method, solves the problem of poor strength of a working well supporting structure in the prior art, and has the beneficial effects that the working well supporting structure is improved, and the construction is facilitated. The specific scheme is as follows: the suspended reverse wall working well supporting structure comprises a well wall; the well wall comprises multiple sections from top to bottom; every two adjacent sections of well walls are connected; the top of the well wall extends towards the peripheral side to be provided with a coping plate; the coping plate is connected with the well wall to form a suspended well wall; a plurality of rows of supporting piles are arranged at the outer side of the well wall in the width direction of the coping plate; the insides of the supporting piles are hollow; the coping plate is connected with the top of each supporting pile through pouring of the coping plate and concrete pouring in the supporting piles; and all the supporting piles and the coping plate are used as a composite suspension stress structure to suspend the well wall.

Description

technical field [0001] The invention relates to the field of underground engineering support, in particular to a support structure and construction method of a suspended reverse wall working well. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the continuous densification of urban buildings, how to reduce the impact of construction on road traffic and surrounding buildings, shorten the construction period, and reduce costs has become a hot issue in pipe jacking projects. In the pipe jacking project, the pipe jacking work well plays a very important role in the project, and it is the only process in the pipe jacking project that requires ground excavation. At present, there are mainly the following problems in pipe jacking wells: long construction period, high cost, and safety. Caisson and reverse construction are the most commonly ...

AI Technical Summary

Problems solved by technology

The inventors found that most of the existing technologies use the pile bearing suspension technology to reverse the well wall, and use artificially dug holed cast-in-situ piles as supporting piles to be arranged in a circular shape outside the well wall. It is used as a whole to overcome the self-weight of the well wall. There is no support structure on the outside of the outer wall, and its structural force system is insufficient. It can only rely on the outer wall support piles to balance the self-weight of the wall transmitted by the ring beam. The ring beam structure is damaged due to the excessive weight of the reverse wall, and the steel bars on the shaft wall are bound during construction, which makes the construction more difficult, so its scope of application is limited

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